[mods] Changes to constants are not visible to user scripts

I've been using screepsmod-speedup for a while. It just changes a bunch of constants to make things faster, cheaper, etc. Since the latest update the mod still works, but the updated constants are not visible to user scripts, which is problematic.

I suspect this is due to IVM. Is this something that needs fixing in the server or do mods need to be updated in some way?